/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.practica.controlador;

import com.practica.modelo.DAO.TrabajadorDAO;
import com.practica.modelo.entidad.Trabajador;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author wilmer noe
 */
public class Controlador extends HttpServlet {
    TrabajadorDAO tdao;

    @Override
    public void destroy() {
        tdao.closeentityManager();
    }

    @Override
    public void init() throws ServletException {
        tdao = new TrabajadorDAO();
    }
    
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
   
        String operacion=request.getParameter("operacion");
        if(operacion.equalsIgnoreCase("insertar")){
        response.sendRedirect("formulario.jsp");
        
        }
        else  if(operacion.equalsIgnoreCase("guardar")){
            String codigo=request.getParameter("codigo");
            String nombre=request.getParameter("nombre");
            String cargo=request.getParameter("cargo");
            
            Trabajador t = new Trabajador();
            t.setIdtrabajador(codigo);
            t.setNombres(nombre);
            t.setCargos(cargo);
            
            if(tdao.InsertaTrabajador(t) )
                response.sendRedirect("exito.jsp");
            else
                response.sendRedirect("error.jsp");
            
               } 
        else if(operacion.equalsIgnoreCase("listado")){
                request.setAttribute("trabajadores", tdao.getListaTrabajadores());
                RequestDispatcher rd =request.getRequestDispatcher("/lista_trabajador.jsp");
                rd.forward(request, response);
        }else if(operacion.equalsIgnoreCase("busqueda")){
            response.sendRedirect("busqueda.jsp");
                   
        }else if (operacion.equalsIgnoreCase("buscar")){
            String codigo = request.getParameter("codigo");
            Trabajador t = tdao.buscarTrabajador(codigo);
            if(t==null)
                response.sendRedirect("error.jsp");
            else{
            request.setAttribute("trab",t);
            RequestDispatcher rd = request.getRequestDispatcher("/ver_trabajador.jsp");
            rd.forward(request,response);
                    }
        }else if (operacion.equalsIgnoreCase("eliminar")){
        String codigo = request.getParameter("codigo");
        
            if(tdao.eliminarTrabajador(codigo) )
                response.sendRedirect("exito.jsp");
            else
                response.sendRedirect("error.jsp");
        
        }
             
        
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
